公开(公告)号：US20230156503A1

公开(公告)日：2023-05-18

申请号：US17442683

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Dirk Nickisch ,  Haijing Hu ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Sharad Sambhwani ,  Srirang A. Lovlekar ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W24/10 ,  H04W76/20 ,  H04W72/20

CPC classification number: H04W24/10 ,  H04W76/20 ,  H04W72/20

Abstract: Techniques discussed herein facilitate Base Station (BS) enhancements to measurement by a RRC Connected mode User Equipment (UE) for configuration of Carrier Aggregation (CA) and/or Dual Connectivity (DC). One example embodiment comprises a BS device comprising a processor configured to perform operations comprising: receiving a UE Assistance Information message comprising a measurement request; transmitting a first RRCReconfiguration message comprising a measConfig IE; receiving a MeasurementReport message from a UE that indicates one or more measurements on one or more sets of frequencies, wherein the one or more sets of frequencies comprise a set of serving frequencies for one of a serving cell or the neighboring cell and a set of non-serving frequencies for the UE, wherein the set of non-serving frequencies are associated with the neighboring cell; and transmitting a second RRCReconfiguration message that configures the UE with at least one set of the one or more sets of frequencies.

公开(公告)号：US20230148128A1

公开(公告)日：2023-05-11

申请号：US17880613

申请日：2022-08-03

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Dirk Nickisch ,  Madhukar K Shanbhag ,  Rohit U Nabar ,  Sanjeevi Balasubramanian ,  Shiva Krishna Narra ,  Sriram Subramanian ,  Tarik Tabet ,  Vishwanth Kamala Govindaraju ,  Yakun Sun ,  Parvathanathan Subrahmanya

IPC: H04W4/08 ,  H04W76/14

CPC classification number: H04W4/08 ,  H04W76/14

Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).

公开(公告)号：US20230083550A1

公开(公告)日：2023-03-16

申请号：US17903420

申请日：2022-09-06

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Dirk Nickisch ,  Laxminarayana Pillutla ,  Mark G Forbes

IPC: G01S7/00 ,  G01S13/89

Abstract: An electronic device may include a set of antenna panels (APs) that transmit and receive signals within a set of signal beams. A proximity sensor such as a radar sensor may gather sensor data indicative of the position an external object. The device may select an AP and a beam that maximize wireless performance in communicating with a base station while also complying with the radio-frequency exposure (RFE). The device may select the AP and the beam based on the sensor data, per-panel and per-beam projected RFE values, antenna port RFE characteristics, per-panel and per-beam transmit power limits, per-beam transmit power backoffs, an RFE lookup table, regulatory RFE limits, and antenna performance metrics. The device may transmit an RFE report to the base station that identifies some or all of this information for use in updating scheduling for the device.

公开(公告)号：US11432249B1

公开(公告)日：2022-08-30

申请号：US17349793

申请日：2021-06-16

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Digvijay A. Jadhav ,  Dirk Nickisch ,  Gil Katzir ,  Laxminarayana Pillutla

IPC: H04W52/36

Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.

公开(公告)号：US20250105986A1

公开(公告)日：2025-03-27

申请号：US18781144

申请日：2024-07-23

Applicant: Apple Inc.

Inventor： Wanlu Sun ,  Mithat C. Dogan ,  Boqiang Fan ,  Sharad Sambhwani

IPC: H04L5/00 ,  H01Q3/22 ,  H04B7/04 ,  H04B7/06

Abstract: A communication system may include a wireless base station (BS), one or more user equipment (UE) devices, and optionally one or more reconfigurable intelligent surfaces (RIS's). Phased antenna arrays may be implemented on one or more of these devices. The phased antenna arrays may exhibit beam squint. The beam squint may be leveraged to optimize communications efficiency in the system. For example, a transmit device may leverage beam squint to perform modulation coding scheme (MCS) adjustment, transmit power level adjustment, reference signal allocation, beam width adjustment, frequency domain resource allocation, carrier aggregation band selection, and/or beam management procedures. Beam squint may also be leveraged to ensure that satisfactory communications are maintained between the BS and the UE devices even as the UE devices move over time.

公开(公告)号：US20250105879A1

公开(公告)日：2025-03-27

申请号：US18781077

申请日：2024-07-23

Applicant: Apple Inc.

Inventor： Wanlu Sun ,  Sharad Sambhwani ,  Ioannis Sarkas

IPC: H04B7/04 ,  H04B7/0426 ,  H04B7/06 ,  H04W52/26

Abstract: A communication system may include a wireless base station (BS), one or more user equipment (UE) devices, and optionally one or more reconfigurable intelligent surfaces (RIS's). Phased antenna arrays may be implemented on one or more of these devices. The phased antenna arrays may exhibit beam squint. The beam squint may be leveraged to optimize communications efficiency in the system. For example, a transmit device may leverage beam squint to perform modulation coding scheme (MCS) adjustment, transmit power level adjustment, reference signal allocation, beam width adjustment, frequency domain resource allocation, carrier aggregation band selection, and/or beam management procedures. Beam squint may also be leveraged to ensure that satisfactory communications are maintained between the BS and the UE devices even as the UE devices move over time.

公开(公告)号：US20240430136A1

公开(公告)日：2024-12-26

申请号：US18734087

申请日：2024-06-05

Applicant: APPLE INC.

Inventor： Zhou Zhou ,  Sharad Sambhwani

IPC: H04L25/02

Abstract: A wireless communication system may use forward-forward learning to for end-to-end learning. A transmitter may pass a positive dataset and a negative dataset through each of its layers for model training. Each layer may correspond to a goodness function. The transmitter may send the positive dataset to a receiver. The receiver may generate a second positive dataset and a second negative dataset based on the positive dataset sent from the receiver. The receiver may train each of its layers using the second positive dataset and the second negative dataset.

公开(公告)号：US12096411B2

公开(公告)日：2024-09-17

申请号：US17517468

申请日：2021-11-02

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Dirk Nickisch ,  Madhukar Krishnamoorthi Shanbhag ,  Sanjeevi Balasubramanian ,  Shiva Krishna Narra ,  Sriram Subramanian ,  Vishwanth Kamala Govindaraju

IPC: H04W72/0453

CPC classification number: H04W72/0453

Abstract: This disclosure provide various techniques for decreasing the time it takes user equipment to tune away from a compromised network connection. By more quickly detecting a signal characteristic issue (e.g., signal quality issue) in the compromised signal and performing mitigation actions, the user equipment may decrease power consumption and increase data throughput. The signal quality issue may be detected by monitoring the location of the user equipment, a channel impulse response of the user equipment, and/or a block error rate (BLER) of a signal, among other methods. The data obtained may be fed into confidence validation logic, which may determine a level of confidence that the signal quality issue may cause a weak or broken connection between the user equipment and a network. The confidence validation logic may, based on the determination, operate the user equipment in an active state, a suspend state, or a release state.

公开(公告)号：US12082029B2

公开(公告)日：2024-09-03

申请号：US17442683

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Dirk Nickisch ,  Haijing Hu ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Sharad Sambhwani ,  Srirang A. Lovlekar ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W24/10 ,  H04W72/20 ,  H04W76/20

CPC classification number: H04W24/10 ,  H04W72/20 ,  H04W76/20

Abstract: Techniques discussed herein facilitate Base Station (BS) enhancements to measurement by a RRC Connected mode User Equipment (UE) for configuration of Carrier Aggregation (CA) and/or Dual Connectivity (DC). One example embodiment comprises a BS device comprising a processor configured to perform operations comprising: receiving a UE Assistance Information message comprising a measurement request; transmitting a first RRCReconfiguration message comprising a measConfig IE; receiving a MeasurementReport message from a UE that indicates one or more measurements on one or more sets of frequencies, wherein the one or more sets of frequencies comprise a set of serving frequencies for one of a serving cell or the neighboring cell and a set of non-serving frequencies for the UE, wherein the set of non-serving frequencies are associated with the neighboring cell; and transmitting a second RRCReconfiguration message that configures the UE with at least one set of the one or more sets of frequencies.

公开(公告)号：US20240107464A1

公开(公告)日：2024-03-28

申请号：US17593400

申请日：2021-07-27

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Jie Cui ,  Laxminarayana Pillutla ,  Manasa Raghavan ,  Qiming Li ,  Sharad Sambhwani ,  Xiang Chen ,  Yang Tang

IPC: H04W52/36

CPC classification number: H04W52/365 ,  H04W52/367

Abstract: Activating an uplink (UL) gap at a base station may include decoding a user equipment (UE) UL gap capability report received from a UE. A radio resource control (RRC) UL gap configuration may be encoded for transmission to the UE. A power headroom report (PHR) medium access control (MAC) control element (CE) received from the UE may be decoded. The PHR MAC CE may include at least one of a P value or a power management maximum power reduction (P-MPR) value. Decoding the measurement information may include determining that the P value is equal to one or the P-MPR value is greater than zero. Based on determining that the P value is equal to one or the P-MPR value is greater than zero, the UL gap configuration may be implicitly activated.